I have a problem with my Ram similar to this. When I hit the brake at around 60 mph the front shakes so bad it feels like the driver's side tire is going to come off. Any other time it is hardly noticeable or doesn't shake at all. I was thinking it may be ball joints or a bad tie rod but I tried checking them when I replaced the anti rattle clips that some decided the truck didn't need at the last brake job and there was no play in either.
What do you guys think? I'll check the control arm for movement. It scares the hell out of me I tell ya what.